feature_name = ['temp_feature_' num2str(bin_package_id) '_' feature_string '.bin'];
label_name = ['temp_label_' num2str(bin_package_id) '_' feature_string '.bin'];

feature = getMat(feature_name );
label = getMat( label_name );


n = size(feature,1);
ord = randperm( n);
ord = ord(1: batch_size * floor(length(ord)/batch_size));
feature = feature( ord, :);
label = label(ord, : );